import router from '@/router'
import store from '@/store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getStore } from '@/utils/storage' // getToken from storage
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

// 路由白名单
const whiteList = ['/login', '/auth-redirect', '/forget-pwd'] // no redirect whitelist
router.beforeEach(async (to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)
  const token = getStore('token')

  if (token) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      // 是否有用户信息
      if (store.getters.userId !== getStore('userId')) {
        try {
          console.log('获取用户信息和菜单')
          // get user info
          await store.dispatch('user/getUserInfo')
          // get user routers
          await store.dispatch('permission/generateRoutes')
          next({ ...to, replace: true })
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      } else {
        next()
      }
    }
  } else {
    /* has no token */
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  NProgress.done() // finish progress bar
})
